private void End20()
{
// Disable Blending by default = BlendState.Opaque
GL20.Disable(All20.Blend);
// set the blend mode
if (_blendState == BlendState.NonPremultiplied)
{
GL20.BlendFunc(All20.One, All20.OneMinusSrcAlpha);
GL20.Enable(All20.Blend);
GL20.BlendEquation(All20.FuncAdd);
}
if (_blendState == BlendState.AlphaBlend)
{
GL20.BlendFunc(All20.SrcAlpha, All20.OneMinusSrcAlpha);
GL20.Enable(All20.Blend);
GL20.BlendEquation(All20.FuncAdd);
}
if (_blendState == BlendState.Additive)
{
GL20.BlendFunc(All20.SrcAlpha, All20.One);
GL20.Enable(All20.Blend);
GL20.BlendEquation(All20.FuncAdd);
}
//CullMode
GL20.FrontFace(All20.Cw);
GL20.Enable(All20.CullFace);
GL20.Viewport(0, 0, this.graphicsDevice.Viewport.Width, this.graphicsDevice.Viewport.Height); // configura el viewport
GL20.UseProgram(program);
if (GraphicsDevice.defaultFramebuffer)
{
GL20.CullFace(All20.Back);
SetUniformMatrix4(uniformWVP, false, ref matWVPScreen);
}
else
{
GL20.CullFace(All20.Front);
SetUniformMatrix4(uniformWVP, false, ref matWVPFramebuffer);
GL20.ClearColor(0.0f, 0.0f, 0.0f, 0.0f);
GL20.Clear((int)(All20.ColorBufferBit | All20.DepthBufferBit));
}
_batcher.DrawBatch20(_sortMode);
GL20.Disable(All20.Texture2D);
}
private void EndGL20()
{
// Disable Blending by default = BlendState.Opaque
GL20.Disable(ALL20.Blend);
// set the blend mode
if (_blendState == BlendState.NonPremultiplied)
{
GL20.BlendFunc(ALL20.SrcAlpha, ALL20.OneMinusSrcAlpha);
GL20.Enable(ALL20.Blend);
GL20.BlendEquation(ALL20.FuncAdd);
}
if (_blendState == BlendState.AlphaBlend)
{
GL20.BlendFunc(ALL20.One, ALL20.OneMinusSrcAlpha);
GL20.Enable(ALL20.Blend);
GL20.BlendEquation(ALL20.FuncAdd);
}
if (_blendState == BlendState.Additive)
{
GL20.BlendFunc(ALL20.SrcAlpha, ALL20.One);
GL20.Enable(ALL20.Blend);
GL20.BlendEquation(ALL20.FuncAdd);
}
//CullMode
GL20.FrontFace(ALL20.Cw);
GL20.Enable(ALL20.CullFace);
UpdateWorldMatrixOrientation();
// Configure ViewPort
var client = Game.Instance.Window.ClientBounds;
GL20.Viewport(client.X, client.Y, client.Width, client.Height);
GL20.UseProgram(program);
// Enable Scissor Tests if necessary
if (this.graphicsDevice.RasterizerState.ScissorTestEnable)
{
GL20.Enable(ALL20.ScissorTest);
GL20.Scissor(this.graphicsDevice.ScissorRectangle.X, this.graphicsDevice.ScissorRectangle.Y, this.graphicsDevice.ScissorRectangle.Width, this.graphicsDevice.ScissorRectangle.Height);
}
if (GraphicsDevice.DefaultFrameBuffer)
{
GL20.CullFace(ALL20.Back);
SetUniformMatrix(uniformWVP, false, ref matWVPScreen);
}
else
{
GL20.CullFace(ALL20.Front);
SetUniformMatrix(uniformWVP, false, ref matWVPFramebuffer);
// FIXME: Why clear the framebuffer during End?
// Doing so makes it so that only the
// final Begin/End pair in a frame can
// ever be shown. Is that desirable?
//GL20.ClearColor(0.0f,0.0f,0.0f,0.0f);
//GL20.Clear((int) (ALL20.ColorBufferBit | ALL20.DepthBufferBit));
}
_batcher.DrawBatchGL20(_sortMode, _samplerState);
if (this.graphicsDevice.RasterizerState.ScissorTestEnable)
{
GL20.Disable(ALL20.ScissorTest);
}
GL20.Disable(ALL20.Texture2D);
}